AT&T UNIX™PC Unix System V Users Manual - tenox

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PTX ( 1 ) PTX ( 1 )
NAME
ptx - permuted index
SYNOPSIS
ptx [ options I [ input [ output I I
DESCRIPTION
Ptx generates the file output that can be processed with a text formatter
to produce a permuted index of file input (standard input
and output default). It has three phases: the first does the permutation,
generating one line for each keyword in an input line. The
keyword is rotated to the front. The permuted file is then sorted.
Finally, the sorted lines are rotated so the keyword comes at the
middle of each line. Ptx output is in the form:
.xx "tail" "before keyword" "keyword and after" "head"
where .xx is assumed to be an nroff or troff macro provided by
the user, or provided by the mptx (5) macro package. The before
keyword and keyword and after fields incorporate as much of the
line as will fit around the keyword when it is printed. Tail and
head, at least one of which is always the empty string, are
wrapped-around pieces small enough to fit in the unused space at
the opposite end of the line.
The following options can be applied:
-f Fold upper and lower case letters for sorting.
-t Prepare the output for the phototypesetter.
-w n Use the next argument, n, as the length of the output
line. The default line length is 72 characters for nroff
and 100 for troff.
-g n Use the next argument, n, as the number of characters
that ptx will reserve in its calculations for each
gap among the four parts of the line as finally
printed. The default gap is 3.
-o only Use as keywords only the words given in the only file.
-i ignore Do not use as keywords any words given in the ignore
file. If the -i and -o options are missing, use
/usr/lib/eign as the ignore file.
-b break Use the characters in the break file to separate words.
Tab, new-line, and space characters are always used
as break characters.
-r Take any leading non-blank characters of each inpu ·
line to be a reference identifier (as to a page c
chapter), separate from the text of the line. Attac'
that identifier as a 5th field on each output line.
The index for this manual was generated using ptx .
FILES
/bin/sort
/usr/lib/eign
/usr /lib/tmacjtmac.ptx
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